GNUBoot/coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

soc/intel/xeon_sp: More PCU locks

Browse source 
Add the following locks as recommended by the Intel docs:

DRAM_POWER_INFO_LOCK
PCU_CR3_FLEX_RATIO_LOCK
TURBO_ACTIVATION_RATIO_LOCK
PCU_CR0_PMAX_LOCK

Change-Id: I8d8211977e87109a91790a4070454fc561aa761b
Signed-off-by: Marc Jones <marcjones@sysproconsulting.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52060
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jay Talbott <JayTalbott@sysproconsulting.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Marc Jones 2021-04-01 14:47:52 -06:00 committed by Patrick Georgi
parent 352ca5b031
commit 4fad28f4c1
4 changed files with 28 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/soc/intel/xeon_sp/cpx/chip.c
View file

@ -121,6 +121,8 @@ static void set_pcu_locks(void)
const struct device *cr0_dev = PCU_DEV_CR0(bus);
pci_or_config32(cr0_dev, PCU_CR0_P_STATE_LIMITS, P_STATE_LIMITS_LOCK);
pci_or_config32(cr0_dev, PCU_CR0_PACKAGE_RAPL_LIMIT_UPR, PKG_PWR_LIM_LOCK_UPR);
pci_or_config32(cr0_dev, PCU_CR0_TURBO_ACTIVATION_RATIO, TURBO_ACTIVATION_RATIO_LOCK);
/* configure PCU_CR1_FUN csrs */
const struct device *cr1_dev = PCU_DEV_CR1(bus);
@ -129,10 +131,12 @@ static void set_pcu_locks(void)
/* configure PCU_CR2_FUN csrs */
const struct device *cr2_dev = PCU_DEV_CR2(bus);
pci_or_config32(cr2_dev, PCU_CR2_DRAM_PLANE_POWER_LIMIT, PP_PWR_LIM_LOCK);
pci_or_config32(cr2_dev, PCU_CR2_DRAM_POWER_INFO_UPR, DRAM_POWER_INFO_LOCK_UPR);
/* configure PCU_CR3_FUN csrs */
const struct device *cr3_dev = PCU_DEV_CR3(bus);
pci_or_config32(cr3_dev, PCU_CR3_CONFIG_TDP_CONTROL, TDP_LOCK);
pci_or_config32(cr3_dev, PCU_CR3_FLEX_RATIO, OC_LOCK);
}
}

15
src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h
View file

@ -25,11 +25,15 @@
#define PCU_CR0_FUN 0
#define PCU_DEV_CR0(bus) _PCU_DEV(bus, PCU_CR0_FUN)
#define PCU_CR0_PLATFORM_INFO 0xa8
#define PCU_CR0_TURBO_ACTIVATION_RATIO 0xb0
#define TURBO_ACTIVATION_RATIO_LOCK BIT(31)
#define PCU_CR0_P_STATE_LIMITS 0xd8
#define P_STATE_LIMITS_LOCK BIT(31)
#define P_STATE_LIMITS_LOCK BIT(31)
#define PCU_CR0_PACKAGE_RAPL_LIMIT_LWR 0xe8
#define PCU_CR0_PACKAGE_RAPL_LIMIT_UPR (PCU_CR0_PACKAGE_RAPL_LIMIT_LWR + 4)
#define PKG_PWR_LIM_LOCK_UPR BIT(31)
#define PKG_PWR_LIM_LOCK_UPR BIT(31)
#define PCU_CR0_PMAX 0xf0
#define PMAX_LOCK BIT(31)
#define PCU_CR1_FUN 1
#define PCU_DEV_CR1(bus) _PCU_DEV(bus, PCU_CR1_FUN)
@ -60,13 +64,18 @@
#define PCU_CR2_FUN 2
#define PCU_DEV_CR2(bus) _PCU_DEV(bus, PCU_CR2_FUN)
#define PCU_CR2_DRAM_POWER_INFO_LWR 0xa8
#define PCU_CR2_DRAM_POWER_INFO_UPR (PCU_CR2_DRAM_POWER_INFO_LWR + 4)
#define DRAM_POWER_INFO_LOCK_UPR BIT(31)
#define PCU_CR2_DRAM_PLANE_POWER_LIMIT 0xf0
#define PP_PWR_LIM_LOCK BIT(31)
#define PCU_CR3_FUN 3
#define PCU_DEV_CR3(bus) _PCU_DEV(bus, PCU_CR3_FUN)
#define PCU_CR3_CONFIG_TDP_CONTROL 0x60
#define TDP_LOCK BIT(31)
#define TDP_LOCK BIT(31)
#define PCU_CR3_FLEX_RATIO 0xa0
#define OC_LOCK BIT(20)
#if !defined(__SIMPLE_DEVICE__)
#define _UBOX_DEV(func) pcidev_path_on_root_debug(PCI_DEVFN(UBOX_DEV, func), __func__)

9
src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h
View file

@ -26,11 +26,18 @@
#define SAD_ALL_PAM0123_CSR 0x40
#define SAD_ALL_PAM456_CSR 0x44
#if !defined(__SIMPLE_DEVICE__)
#define _PCU_DEV(bus, func) pcidev_path_on_bus(bus, PCI_DEVFN(PCU_DEV, func))
#else
#define _PCU_DEV(bus, func) PCI_DEV(bus, PCU_DEV, func)
#endif
#define PCU_IIO_STACK 1
#define PCU_DEV 30
#define PCU_CR1_FUN 1
#define PCU_CR0_FUN 0
#define PCU_DEV_CR0(bus) _PCU_DEV(bus, PCU_CR0_FUN)
#define PCU_CR0_PLATFORM_INFO 0xa8
#define PCU_CR0_P_STATE_LIMITS 0xd8
#define P_STATE_LIMITS_LOCK_SHIFT 31
@ -40,6 +47,8 @@
#define PCU_CR0_CURRENT_CONFIG 0xf8
#define MAX_NON_TURBO_LIM_RATIO_SHIFT 8 /* 8:15 */
#define MAX_NON_TURBO_LIM_RATIO_MASK (0xff << MAX_NON_TURBO_LIM_RATIO_SHIFT)
#define PCU_CR0_PMAX 0xf0
#define PMAX_LOCK BIT(31)
#define PCU_CR1_BIOS_MB_DATA_REG 0x8c

3
src/soc/intel/xeon_sp/util.c
View file

@ -318,6 +318,9 @@ static void set_bios_init_completion_for_package(uint32_t socket)
if (timedout)
die("BIOS RESET CPL3 timed out.\n");
/* Set PMAX_LOCK - must be set before RESET CPL4 */
pci_or_config32(PCU_DEV_CR0(bus), PCU_CR0_PMAX, PMAX_LOCK);
/* update RST_CPL4, PCODE_INIT_DONE4 */
timedout = set_bios_reset_cpl_for_package(socket, RST_CPL4_MASK,
PCODE_INIT_DONE4_MASK, RST_CPL4_MASK);